Scyther locations — where to catch

In Lumiose City (Legends: Z-A)

• Wild Zone 13 — Walk

In Paldea (Scarlet & Violet)

• Casseroya Lake — Walk
• Dalizapa Passage — Walk
• North Province (Area One) — Walk
• North Province (Area Two) — Walk
• Poco Path — Walk
• Socarrat Trail — Walk
• South Province (Area Four) — Walk, Static Encounter
• South Province (Area One) — Walk
• West Province (Area Three) — Walk
• West Province (Area Two) — Walk

In Blueberry Academy (Scarlet & Violet – The Indigo Disk)

• Canyon Biome — Walk
• Savanna Biome — Walk

In Hisui (Legends: Arceus)

• Grandtree Arena — Walk
• Primeval Grotto — Walk
• Space-time distortions — Walk
• The Heartwood — Walk

In Sinnoh (Diamond, Pearl & Platinum)

• Route 210 — Walk
• Route 215 — Walk
• Route 229 — Walk

In Johto & Kanto (HeartGold & SoulSilver)

• National Park — Walk

In Kanto (FireRed & LeafGreen)

• Celadon City — Gift
• Safari Zone — Walk

In Johto & Kanto (Gold, Silver & Crystal)

• National Park — Bug-Catching Contest

In Kanto (Red, Blue & Yellow)

• Celadon City — Gift
• Safari Zone — Walk

Other games (7)

• Brilliant Diamond / Shining Pearl (Gen 8): Route 229
• Sword / Shield — The Isle of Armor (Gen 8): Fields of Honor, Max Lair, Training Lowlands
• Let's Go, Pikachu! / Let's Go, Eevee! (Gen 7): Kanto Route 14, Kanto Route 15
• Ultra Sun / Ultra Moon (Gen 7): Poni Plains
• Sun / Moon (Gen 7): Poke Pelago, Poni Plains
• X / Y (Gen 6): Kalos Route 21
• XD (Gen 3): Citadark Isle

Scyther — full Pokédex entry